| All Patents in class 29/6.01 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 79,000 | Jun. 16, 1868 | G. Raft | Wrist-Pin Turner | wrist pin lathes |
| 1,108,954 | Sep. 01, 1914 | A.L. Warner | Crank Shaft Forging Apparatus | forging dies |
| 1,378,642 | May 17, 1921 | L.I. Yeomans | Process and machine for making crank-shafts for engines, compressors, and the like | crankshaft lathes |
| 2,243,379 | May 27, 1941 | G.H. Johnson | Machine Tool | balancing machinery |
| RE22,174 | Sep. 08, 1942 | W.R. Meyer, W.F. Groene | Broaching Lathe | metal lathes |
| 2,330,968 | Oct. 05, 1943 | H.J. Siekmann, W.F. Groene | Multiple Spindle Broaching Lathe Indexing Mechanism | metalworking machine mechanisms |
| 2,426,932 | Sep. 02, 1947 | L. Hornbostel | Rotary Tool Lathe | metal lathes |
| 2,650,522 | Sep. 01, 1953 | L.E. Godfriaux | Turn Milling Lathe | crank pin lathes |
| 2,807,973 | Oct. 01, 1957 | H.J. Siekmann, W.H. Meyer, administrator, W.R. Meyer, deceased (estate of) | Apparatus for Manufacturing Crankshafts Automatically | crankshaft lathes |
